Tsuujou Kougeki ga Zentai Kougeki de Ni-kai Kougeki no Okaasan wa Suki Desu ka? Temporada 1 Episódio 6

With Shirases help, Mamako is allowed to attend the school as well. Just like Medhimama, she becomes an observer in Masatos class. When Medhimama finds out that her magic doesnt work on Mamako, she decides that Mamako is her new rival.